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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 1051. |
(SSC CHSL Exam, 2014)By increasing the speed of his car by 15 km/h, a person covers 300 km distance bytaking an hour less than before. The original speed of the car was:(a) 45 km/h (6) 50 km/h (c) 60 km/h (d) 75 km/h(CDS Exam, 2015)=â---------------- |
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Answer» 60 km/h this is the answer |
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| 1052. |
11526. Twelve Children15n 8 children15working 10 hours a day will clean the school in how manyworking 8 hours a day can clean up their school in 5 days, thedays(B) 12 (C) 9 (RdsRato km/h. |
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Answer» 8*12*5 = 8*10*x x = 8*12*5/8*10 x = 6 hours Like my answer if you find it useful! |
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| 1053. |
A person covers half his journey by train at 60 kmph, theremainder half by bus at 30 kmph and the rest by cycle at10 kmph. Find his average speed during the entirejourney |
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Answer» Thanks |
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| 1054. |
\begin{array} { l } { \text { A man covers } 15 \mathrm { km } \text { in } 3 \text { hours, by partly cycling } } \\ { \text { and partly walking. If the person walks at a } } \\ { \text { speed of } 3 \mathrm { km } / \mathrm { hr } \text { and cycles at a speed of } 9 } \\ { \mathrm { km } / \mathrm { hr } . \text { What is the distance he cover by cycling? } } \end{array} |
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| 1055. |
1a. A bus covers 128 km in 2 hours and a train covers 240 km in 3 hours. Find the raSl18. A bus covers 128their speeds |
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| 1056. |
An Honoplano covers 1020 km un aan bow How much listencewill ut covers in a hours |
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| 1057. |
(3) 55 min(4)40A coach of a cricket team buys 7 bats and 6 balls3800, later he buys 3 bats and 5 balls for 1750. Thethe cost of each bat and each ball will be(1) 500, ?50 (2) 400, 40(3) ? 250 ? 40(4) ? 300, 715(5) 200, ?10 |
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| 1058. |
40Complete the set of multiples of:(a) 5:5, 10, 15, 20, 25, 30(b) 4:4, 8, 12, 16,(c) 8:8, 16, 24, 32,(d) 3:3, 6, 9, 12, |
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Answer» b= 20,24,28,32 ,c 40,48,56,64,d15,18,21,24 16,20,24,2864,72,80,889,12,15,18 b)4,8,12,16,20,24,28,32,36,40c)8,16,24,32,40,48,56,64,72,80d)3,6,9,12,15,18,21,24,27,30 |
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| 1059. |
ne malunly amount at the end of 12 yearscompany purchases an office copier machine for 50,000. It is estimateopreciates in its value at a rate of 15% per year. What will be the valcopier decopier after 15 years? |
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Answer» So, value of the machine after one year will be =50000-(15/100)50000=50000(85/100)=0.85x50000 So,this new value will be the base value for next year and the new value after further 15% depreciation will be= 0.85x0.85x50000=Rs 4367.71 Similarly after 15 years net value will be=[(0.85)^(15)] x 50000=Rs 4367.71 |
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| 1060. |
8)If the median of the following data is 32.5, find the missing frequencies.Class interval 0-10 10-20 20-30 30-40 40-50 50-60 60-70 Total40Frequencyf1912f2 |
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Answer» tq |
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| 1061. |
oui mseaand side is tuice tha twyd Side i tho peimeaurg |
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| 1062. |
represent 89.3 by generationen3. Explain how towith de. |
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| 1063. |
Q. A photon and electron have got same de-Broglie wavehas greater total energy? Explain |
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| 1064. |
56. (64)-2/3x1) का मान बताइए(b) 2--| Nc |
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| 1065. |
1(x)- 2+4x-1. Find P (O) and P (3).13. For polynomial14. In which quadrant in coordinate plane the points (5 |
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Answer» P(0)=0+0-1=-1P(3)=1/3*9+4(3)-1=3+12-1=15-1=14 |
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| 1066. |
11. The points A (3, 2) and B (2, -3) are equidistant from a point P (x, y). Find the relationbetween x and y. |
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| 1067. |
6.Find the values of x for which the distance between the points P(2, -3) and Q(x, 5) is 10 units |
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| 1068. |
9. If P(x, y) is any point on the line joining the points A(a, 0) and B(0, b) then showthat X+1. |
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| 1069. |
b*(-2 %2B 7)^1 - 1 |
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Answer» to find (7-2)² /4*2=5² /4*2=25*1/8=25/8 |
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| 1070. |
a Find the mode of the following dataclass 100-150 150-200 200-250 250-300 300-350 350-400 400-450frequency 2217.201837 41(QR3025 |
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Answer» class mid point frequency100-150 125 22150-200 175 30200-250 225 37250-300 275 41300-350 325 25350-400 375 20400-450 425 18 mode=(125×22+175×30+225×37+275×41+325×25+375×20+425×18)/(22+30+37+41+25+20+18)=263.60 |
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| 1071. |
and veritytheyer alandagbythe |
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| 1072. |
Solhe each ef the Poilowisg qushous and verity2-2 |
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Answer» =(x-2)/2 + (x+10)/9=59(x-2)+2(x+10)=909x-18+2x+20=9011x=88x=8 |
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| 1073. |
Verity that x2+3 is a factor of the polynomial 4x47x -15. |
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| 1074. |
Example 7Express in kg using decimals.a. 250 gb. 2476 g |
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Answer» it is very simple question a.0.25kgb.2.476kg the answer of this question is a}. 0.25kgb}. 2.476kg a. 0.25kgb.2.476kgthese are the answer (a).Right answer is 0.25 kuch(b). Right answer is 2.476kg a)0kgs 250 grams0.250kgsb)2.476 |
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| 1075. |
2, 5, 10, 17, 26, 37, 50, 64(a) 50 (b)26 (0) 37 (d) 64 |
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Answer» 37 विषम संख्या हैOption c |
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| 1076. |
A section of the road measuring2.5 km is represented by 5 cm ona map. What is the scale of themap?A. 1:50 000B. 1:250 000C. 1:5 000D. 1:500 000 |
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| 1077. |
PeriousPus Ouestions & AnswersFini the odd one out in the sequence of numbers2 5. 10. 17. 26, 37, 50. 642 50b) 26(c) 37(d) 64s+ W |
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Answer» (d) 64 Explanation:All other numbers are one added to the square of natural numbers. 64 is square of 8.1^2 + 1 = 22^2 + 1 = 5 i want formula |
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| 1078. |
3.Find arithmetic mean in the following:Class-interval Frequency0 5050-100100 150150- 200200 250250 300101530352515 |
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Answer» Taking the middle of the class we get (25*10+75*15+125*30+175*35+225*25+275*15)/(10+15+30+35+25+15) = 21000/(130) = 161.53 |
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| 1079. |
12. PQRS is a parallelogramand SQ is a diagonal. PPoints X and Y lion SQ such thatSX = QY. Showand thus show thatFig. 25.34 |
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| 1080. |
2 Find the value of x for which the numbers (Sx+2).(4x-1)and+2ain AP |
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| 1081. |
-(1 %2B sqrt(7))/(-1 %2B 7^(1/4)) %2B (-1 %2B sqrt(7))/(1 %2B sqrt(7))=a %2B sqrt(7)*b |
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Answer» check outmy solution |
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| 1082. |
-(1 %2B sqrt(7))/(-1 %2B sqrt(7)) %2B (-1 %2B sqrt(7))/(1 %2B sqrt(7))=a %2B sqrt(7)*b |
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| 1083. |
x*((-1 %2B sqrt(7))/(1 %2B sqrt(7))) - (1 %2B sqrt(7))/(-1 %2B sqrt(7))=a %2B sqrt(7)*b |
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| 1084. |
1 Expand the following.a (2x +y)b (x + 3y)f (r-2y)d (2a +3b)e (3x-2y)3e (5x + 3)34y)2 Find the values of the following.x3 +y,3 ifx +y-3 and xy-28x3 +27),3 if 2x + 3y14and xy-3ab2 7x3-64уз if 3x-4y-0 and xy-| 2d 27a3 + 8b3 if 3a + 2b- 6 and ab 2c3Simplify the following.a (3a + b)3+ (3a -b)3b (5x +2y)- (5x-2y)e (2x--(2x y)a (102)3a (a-b+c)2d (3x-4y)+ (3x + 4y)c (1001)c (5x+y +22) d (a-2b-3c)4 Evaluate the following.etb (105)3d (99)3000 5 Expand the following.10050b (a -b-c)2f (Sa + b-3e) g (e (2x -yt 32)-a+3b+ 7c)2h (x+3y1) |
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Answer» ex22a find the product of each of the following 729a³+ 64b³ +125c³+180abc evaluate the following (105)^2 |
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| 1085. |
ype-3LLöng AMswer type Questlons22. Verify thaial f(x) 3x 5x05x4-11x- 3 andat 3,- 1 andare the zeroes of the cubic polynom3(NCERT)c the nolvnomialthen verify the relationship between the zeroes and coefficients. |
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Answer» Like if you find it useful |
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| 1086. |
(sqrt(7) %2B 3)/(-sqrt(7) %2B 3)=a %2B sqrt(7)*b |
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| 1087. |
Example S.22: Verity Rolle's theorem for the following(i)f(x) =x^3-3x + 3 0<=x<=1 |
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Answer» so we have find a c , as shown in above. |
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| 1088. |
21. Show that the function defined by f:Q Qffx)3x+5 for all xEQ is invertible.22. If /(x)--, then what is f1/{f(x)))?23. Let a function f:R R be defined by:f(x) 3-4x. Prove that'f' is one-one and onto24. If f(x)=-. then prove that f{f(x)2x+12x+12x+3 |
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Answer» Can you help me out with these questions.....please |
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| 1089. |
\log \frac{25}{33}+\sqrt{\log \frac{55}{46}}-\log \frac{65}{69} |
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Answer» log25 - log33 + log55 - log46 - log65 + log69 = 2log5 - log3 - log11 + log5 + log11 - log23 - log2 - log13 - log5 + log23 + log3 = 2log5 - log3 - log2 - log13 |
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| 1090. |
4 i x ) \frac { 2 \sqrt { 30 } } { \sqrt { 6 } } - \frac { 3 \sqrt { 140 } } { \sqrt { 28 } } + \frac { \sqrt { 55 } } { \sqrt { 99 } } |
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| 1091. |
3x + 25t-3 Thena) f-Äą (x)=f(x)b) f-i (x)=-f(x)c) f"(x)=-19 f (x)d) (fof)(x)=-xT |
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| 1092. |
139X-10x+3(x-1)(x-2)(x-3)]3. 9 1010 x-2x-3x-1( 9 13 132)x-3x-2x-13ă+-+-2) x-2 r-3 F-191334) x-2x-3x-1 |
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| 1093. |
ofn. Find the range of f.Sa, 0<x<316. The function f is defined by f(x) = 3x 3 Sx s10(x, 0<x<2The relation g is defined by g(x) = 1 3x, 2 sx s10Show that f is a function and g is not a function.f (11)(1) |
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| 1094. |
The relation fis defined by f(x) =x 0<x<3(3x,35x510x 05x<2The relation g is defined by 8(x)=3x, 25x510Show that f is a function and g is not a function. |
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Answer» what is the answer to solve the question plese like my answer then I like your answer to all of you |
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| 1095. |
lu) 2011ULES25, A tap can fill a cistern in 8 hours and another tap can empty the full cistern in 16 hours. Ifboth the taps are open, the time taken to fill the cistern is(a) 5-hours (b) 10 hours (c) 16 hours (d) 20 hours |
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| 1096. |
16. Three taps A. B and C can fillan overhead tank in 6 hours, 8 hours and 12 hourswould the three taps take to fill the empty tank. if all of them areopened together? |
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| 1097. |
Three taps X, Yand Z can fill an overhead tank in 6 hours, 8 hours and 12 hours respectivelyHow long would the three taps take to fill the empty tank, if ail of them are opened together?g. |
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| 1098. |
5. Taps A and B can fill an empty tank in 3 hoursand 5 hours, respectively. Tap C can empty thefull tank in 7 hours. If all three taps are openat the same time, in how many hours will thetank be full? |
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Answer» Step-by-step explanation: A's 1 hr work = 1/3 B's 1 hr work = 1/5 C's 1 hr Work = -2/15 (A+B+C)'s 1 hr work = (1/3) + (1/5) + (-2/15) = 2/5 So If all the pipes are opened at the same time they will take 5/2 hours to fill the tank. |
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| 1099. |
14. Taps A and B can fill a tank in 8 hours and 12 hours respectively and tapC (at the bottom) can empty it in 24 hours. If all the three taps are openedtogether when the tank is empty. Find after how many hours the tank will befull. |
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Answer» thanks |
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| 1100. |
Trano d Sinah Bank Fo 201123. A water tank has three taps A, B, C. Tap A, when opened, can fill thewater tank alone in 4 hours. Tap B, when opened, can filled the watertank alone in 6 hours and tap C, when opened, can empty the watertank alone in 3 hours. If taps A, B and C are opened simultaneouslyhow ong will it take to fill the tank completely ? |
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Answer» 1 hr capacity by A,B,C=1/4 +1/6 -1/3=1/12So tank will be filled completely in 12 hours |
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